Ink cartridge



FIG. 1 is a perspective view of an ink cartridge;

FIG. 2 is another perspective view thereof;

FIG. 3 is a top view thereof; and,

FIG. 4 is a right-side view thereof.

The broken lines are for illustrative purposes only and do not form partof the claimed design.

The ornamental design for an ink cartridge, as shown and described.